Finite-volume time-domain (FVTD) techniques for EM scattering

Author

Holland, Richard ; Cable, Vaughn P. ; Wilson, Louis C.

Volume

33

Issue

4

fYear

1991

fDate

11/1/1991 12:00:00 AM

Firstpage

281

Lastpage

294

Abstract

The authors document our efforts to compute radar cross sections using a generalization of the FDTD (finite difference time domain) Yee algorithm (1966) in which a nonorthogonal target-conforming mesh may be applied. Both 2D and 3D formulations are presented, although at present they only have 2D numerical results. Two-dimensional problems considered involve an S-shaped duct (S-duct) and an ogive. At least nine distinct resonances are correctly predicted by the S-duct model. The primary goal is to model oblique or curved surfaces without the use of staircasing

Keywords

difference equations; electromagnetic wave scattering; radar cross-sections; time-domain analysis; 2D formulation; 3D formulations; EM scattering; FDTD Yee algorithm; S-shaped duct; curved surfaces; distinct resonances; electromagnetic scattering; finite difference time domain; finite-volume time domain method; nonorthogonal target-conforming mesh; oblique surface modelling; ogive; radar cross sections; Dielectric losses; Differential equations; EMP radiation effects; Finite difference methods; Frequency; Integral equations; Magnetic materials; Maxwell equations; Radar scattering; Time domain analysis;

fLanguage

English

Journal_Title

Electromagnetic Compatibility, IEEE Transactions on

Publisher

ieee

ISSN

0018-9375

Type

jour

DOI

10.1109/15.99109

Filename

99109